Robust droop control design for a hybrid AC/DC microgrid

Alam, Farooq; Ashfaq, Muhammad; Zaidi, Syed Sajjad Haider; Memon, Attaullah Y.

doi:10.1109/control.2016.7737547

Cited by 20 publications

(7 citation statements)

References 6 publications

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“…Furthermore, the line impedance is treated as part of the equivalent output impedance of individual power converters, while the inaccuracy of load sharing is minimised by regulating the newly introduced robust coefficients. A similar approach is presented in [129] for a hybrid interlinking converter of an AC/DC microgrid.…”

Section: Robust Droopmentioning

confidence: 99%

Advanced Hierarchical Control and Stability Analysis of DC Microgrids

Braitor

2022

Springer Theses

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source is rigorously proven using ultimate boundedness theory. Asymptotic stability to the desired equilibrium for the closed-loop system is analytically guaranteed, and detailed conditions are derived to guide the control design. v In order to validate the effectiveness of the different control methodologies developed in this thesis, both simulation and experimental testing are performed for each one of the methods, and are also compared with the conventional approaches to highlight their superiority. vi xi 5.4 Simulation results of the system states of two parallel operated DC/DC boost converters under the proposed controller . . . . . . . . . . . . . 5.5 Simulation results of the controller states of two parallel operated DC/DC boost converters under the proposed controller . . . . . . . . 5.6 DC microgrid configuration with n paralleled unidirectional DC/DC boost converters feeding a common generic load.

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Section: Robust Droopmentioning

confidence: 99%

Advanced Hierarchical Control and Stability Analysis of DC Microgrids

Braitor

2022

Springer Theses

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“…The difficulty of power-sharing consists of optimally assigning each DG with respective active and reactive power (in AC MGs) so that the load demand is satisfied without overloading a specific DER and without degrading the MG bus voltage and frequency ( & ) levels. Power-sharing is usually implemented in a distributed way by droop control strategies, because of low-bandwidth communication requirements and high flexibility concerning plug-and-play MG devices [18], [68]- [72]. A comprehensive review of droop control strategies is summarised in [73].…”

Section: Power-sharing [100 Ms -1s]mentioning

confidence: 99%

“…This conflict is due to the droop coefficients which determine the active and reactive power references based on the frequency and voltage sensed at the CB. Variants of the traditional droop control were developed to tackle but not eliminate this trade-off, such as adaptative droop controls [73], [134], robust droop control strategy [72] and online droop parameter determination based on output active and reactive power [69]. Another approach is to add a secondary control layer that changes the set-points of the units using low-bandwidth communication as proposed by [19], [135].…”

Section: Power-sharing Controlmentioning

confidence: 99%

A review of hierarchical control for building microgrids

Yamashita

Vechiu

Gaubert

2020

Renewable and Sustainable Energy Reviews

124

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“…PV output power is predicted using SMC which helps in regulating the frequency (Mu et al, 2016). Even the droop control method can be implemented for frequency control based on SMC for an alternating current or direct current (AC/DC) MG. As load variations cause uncertain voltage and frequency drop, SMC-based droop control mechanism maintains the stability of the MG (Alam et al, 2016). Adaptive sliding mode control (ASMC) is used to find the real power for the MG comprising wind, solar, micro-hydro turbine, and BESS in order to keep up the power balance among the sources.…”

Section: Smcmentioning

confidence: 99%

Control strategies for frequency regulation in microgrids: A review

Verónica

Kumar

2019

Wind Engineering

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The electric power generation over the past decade has moved from conventional fossil fuel-fired thermal power plants to tiny-scale system generating power through distributed generation units. A group of such distributed generation units and loads are termed as microgrids. Microgrids can be located near the load centers to supply the load without any loss of power. Frequency regulation in a microgrid operating in autonomous mode is critical because of the intermittent nature of the renewable sources employed. To maintain the frequency regulation within a tolerance limit in a microgrid, proper control schemes have to be adopted in order to increase or decrease the real power generation. Hence, this article explores and presents a critical review of different types of control strategies employed for frequency regulation in microgrids.

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Robust droop control design for a hybrid AC/DC microgrid

Cited by 20 publications

References 6 publications

Advanced Hierarchical Control and Stability Analysis of DC Microgrids

Advanced Hierarchical Control and Stability Analysis of DC Microgrids

A review of hierarchical control for building microgrids

Control strategies for frequency regulation in microgrids: A review

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